【WebService】通过CXF发布WebService第一例

CXF的理论知识就不重复了。

• 发布服务

1、在OSGI bundle中发布，所以首先创建OSGI工程，并加入CXF所需要的库文件，

?????? MANIFEST.MF文件内容：

? ? ? ?

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: MySimpleWebServiceCXF01
Bundle-SymbolicName: MySimpleWebServiceCXF01
Bundle-Version: 1.0.0.qualifier
Bundle-Activator: mysimplewebservicecxf01.Activator
Bundle-ActivationPolicy: lazy
Bundle-RequiredExecutionEnvironment: JavaSE-1.6
Import-Package: org.apache.commons.logging;version="1.0.4",org.osgi.framework;version="1.3.0"
Bundle-ClassPath: lib/geronimo-activation_1.1_spec-1.1.jar,lib/geronimo-annotation_1.0_spec-1.1.1.jar,lib/geronimo-javamail_1.4_spec-1.7.1.jar,lib/geronimo-jaxws_2.2_spec-1.1.jar,lib/geronimo-servlet_2.5_spec-1.1.2.jar,lib/geronimo-stax-api_1.0_spec-1.0.1.jar,lib/geronimo-ws-metadata_2.0_spec-1.1.3.jar,lib/jaxb-api-2.2.3.jar,lib/jaxb-impl-2.2.4-1.jar,lib/jetty-util-7.5.4.v20111024.jar,lib/neethi-3.0.1.jar,lib/saaj-api-1.3.4.jar,lib/saaj-impl-1.3.12.jar,lib/wsdl4j-1.6.2.jar,lib/xml-resolver-1.2.jar,lib/xmlschema-core-2.0.1.jar,.,lib/cxf-2.5.2.jar,lib/org.eclipse.equinox.http.jetty_2.0.0.v20100503.jar,lib/jetty-server-7.5.4.v20111024.jar,lib/jetty-http-7.5.4.v20111024.jar,lib/jetty-continuation-7.5.4.v20111024.jar,lib/jetty-io-7.5.4.v20111024.jar,lib/jetty-security-7.5.4.v20111024.jar,lib/stax2-api-3.1.1.jar,lib/wstx-asl-3.2.0.jar

? 2、声明一个WebService服务接口并实现

??????? WebService接口文件 IUserManager.java

package mysimplewebservicecxf01.user.api;

import java.util.List;

import javax.jws.WebService;

import mysimplewebservicecxf01.user.api.model.User;

@WebService
public interface IUserManager {
    int addUser(String name);
    List<User> queryUsers();
    User queryUser(int userId);
    boolean deleteUser(int userId);
}

???? Java Bean对象User.java

package mysimplewebservicecxf01.user.api.model;

public class User {
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	private int id;
	private String name;
}

????? WebService的实现 UserManager.java

package mysimplewebservicecxf01.user.impl;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import mysimplewebservicecxf01.user.api.IUserManager;
import mysimplewebservicecxf01.user.api.model.User;

public class UserManager implements IUserManager {
	Map<Integer,User> userMap = new HashMap<Integer,User>();
	int newID = 0;
	@Override
	public int addUser(String name) {
		
		int newId = this.newID++;
		System.out.println("add a user begin,userId:"+newId + ",name:"+name);
		User user = new User();
		user.setId(newId);
		user.setName(name);
		userMap.put(newId,user);
		System.out.println("add a user ok");
		return newId;
	}

	@Override
	public List<User> queryUsers() {
		System.out.println("query all users begin");
		List<User> userList = new ArrayList<User>();
		for(User user:userMap.values()){
			userList.add(user);
		}
		System.out.println("query all users end,count:"+userList.size());
		return userList;
	}

	@Override
	public User queryUser(int userId) {
		System.out.println("query a user begin,userId:"+userId);
		if(userMap.containsKey(userId)){
			User user = userMap.get(userId);
			System.out.println("query a user begin,userId:"+userId+",name:"+user.getName());
			return user;
		}
		System.out.println("query a user end,no the user("+userId+")");
		return null;
	}

	@Override
	public boolean deleteUser(int userId) {
		System.out.println("delete a user begin,userId:"+userId);
		if(userMap.containsKey(userId)){
			User user = userMap.remove(userId);
			System.out.println("delete a user end,name:"+user.getName());
		}
		return true;
	}
}

3、实现一个WebService服务发布的工具类，用来发布WebService服务

package mysimplewebservicecxf01.publish;

import java.util.ArrayList;
import java.util.List;

import mysimplewebservicecxf01.service.interceptor.SampleInterceptorService;

import org.apache.cxf.jaxws.JaxWsServerFactoryBean;

public class ServiceManager {
	private static final ServiceManager instance = new ServiceManager();
	List<String> serviceList = new ArrayList<String>();
	
	public static ServiceManager getInstance(){
		return instance;
	}
	
	private ServiceManager(){
		
	}
	
	public void publish(Class<?> clazz,Object implObj){
		//创建WebService服务工厂
        JaxWsServerFactoryBean factory = new JaxWsServerFactoryBean();
        //注册WebService接口
        factory.setServiceClass(clazz);
        //发布接口
        factory.setAddress("http://localhost:9000/" +clazz.getSimpleName());
        factory.setServiceBean(implObj);
//        factory.getInInterceptors().add(new LoggingInInterceptor()); 
//        factory.getOutInterceptors().add(new LoggingOutInterceptor()); 
       factory.getInInterceptors().add(new SampleInterceptorService());
        //创建WebService
        factory.create();
	}
}

4、最后在Activator的start函数中，使用ServiceManager 将服务发布出来

package mysimplewebservicecxf01;

import mysimplewebservicecxf01.publish.ServiceManager;
import mysimplewebservicecxf01.user.api.IUserManager;
import mysimplewebservicecxf01.user.impl.UserManager;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

public class Activator implements BundleActivator {

	private static BundleContext context;

	public void start(BundleContext bundleContext) throws Exception {
		Activator.context = bundleContext;
		
		ServiceManager.getInstance().publish(IUserManager.class,new UserManager());
  
	}

	public void stop(BundleContext bundleContext) throws Exception {
		Activator.context = null;
	}

}

• 客户端调用服务器
  

package mysimplewebservicecxf01;

import java.util.List;

import mysimplewebservicecxf01.client.interceptor.SampleInterceptorClient;
import mysimplewebservicecxf01.user.api.IUserManager;
import mysimplewebservicecxf01.user.api.model.User;

import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;

public class Client {

	public static void main(String[] args) {     
       
        IUserManager userMgr = (IUserManager) getService(IUserManager.class);
        List<User> userList = userMgr.queryUsers();
        int count = 0;
        /*还不清楚为什么，当返回的List为空时，客户端收到的却是null*/
        if(null != userList){
        	count = userList.size();
        	
        }
        System.out.println("Count:"+count);
        
        int userId01 = userMgr.addUser("User01");
        
        userList = userMgr.queryUsers();
        count = userList.size();
        System.out.println("Count:"+count);
        
        int userId02 = userMgr.addUser("User02");
        
        userList = userMgr.queryUsers();
        count = userList.size();
        System.out.println("Count:"+count);
        
        userMgr.deleteUser(userId02);
        
        userList = userMgr.queryUsers();
        count = userList.size();
        System.out.println("Count:"+count);
	}
	
	public static Object getService(Class<?> clazz){
		//创建WebService客户端代理工厂
        JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
        //注册WebService接口
        factory.setServiceClass(clazz);
        //设置WebService地址
        factory.setAddress("http://localhost:9000/"+clazz.getSimpleName());  
        factory.getOutInterceptors().add(new SampleInterceptorClient());
        return factory.create();
	}

}